Figures 10 and 10A consolidate current information for the HDSL / HDSL2, DSX-1, and DS1 interfaces. A key to the information provided is found in the center of the screen. Arrows indicate the key applies to both the HTU-C and HTU-R.
LOSS | Pulse Attenuation Measurement |
SYNC | HDSL Loop 1 and Loop 2 Sync |
| Status |
ES 15M/24H | Errored Seconds* |
SES 15M/24H | Severely Errored Seconds* |
UAS 15M/24H | Unavailable Seconds* |
*The first number is for the current
An indication of Pair Reversal (if present) is given at the bottom of the first key column. Loopback status for the
FRAME | T1 Framing Format select |
CODE | T1 Line Code selected |
LBO | Line |
| Customer signal of 0, |
| and |
NIU | Network Interface Unit enabled? |
BVP | Bipolar Violations detected |
| DS1) |
ES | Errored Seconds |
SES | Severely Errored Seconds |
| DS1) |
UAS | Unavailable Seconds |
Alarms | Lists current alarm condition status |
A measure of signal quality for each HDSL / HDSL2 loop is displayed in graphic form on the bottom right of the screen. The measure is from 0 (poor signal quality) to 9 (excellent signal quality). Guidelines for interpreting the indicators are given below.
0Noise margin is ≤ 0 dB (≈
Margin measurement above |
9Margin is ≥ 9 dB above
Predicting performance based upon signal quality varies with each loop. Generally, a noise margin of 0 or higher will support a bit error rate of better than
ADTRAN has defined the following as guidelines that correspond to the operation of the
Margin < 0 Poor Loop Signal Quality
0 ≤ Margin ≤ 2 Marginal Loop Signal Quality
Margin > 2 Good Loop Signal Quality (better than
08/08/70 | 18:05:00 |
|
| SUMMARY - [ SLOT 8 | ] |
| SHELF | ADDRESS = 00 | |||||
LOOP #1 <NETWORK> LOOP #2 |
| ELAPSED TIME 00:14:17 | LOOP #1 <CUSTOMER>LOOP #2 | ||||||||||
HRE |
|
|
|
|
|
| |||||||
00 dB |
|
| 00 dB |
| <- |
| LOSS |
|
| 01 dB |
| 01 dB | |
YES |
|
| YES |
| <- |
| SYNC |
|
| YES |
| YES | |
000/00000 |
| 000/00001 |
| <- ES |
| 15M/24H | 001/00001 | 001/00001 | |||||
000/00000 |
| 000/00000 |
| <- SES | 15M/24H | 000/00000 | 000/00000 | ||||||
001/00001 |
| 001/00001 |
| <- UAS | 15M/24H | 006/00006 | 001/00001 | ||||||
LOOPBACK INACTIVE |
|
|
|
|
|
|
|
|
|
| |||
HRE#1 NET | SIGNAL QUALITY | N = NETWORK | SIDE RECEIVER | HRE#1 CUST SIGNAL | QUALITY | ||||||||
[X] | 9 | [X] |
| C = CUSTOMER SIDE RECEIVER |
| [X] | 9 | [X] | |||||
L[X] | 8 | L[X] |
|
|
|
|
|
|
|
| L[X] | 8 | L[X] |
O[X] | 7 | O[X] | ____ |
| LP1 ____ LP1 | ____ |
| ____ | O[X] | 7 | O[X] | ||
O[X] | 6 | O[X] | HTUC | HRE1 | HRE2 | HTUR | O[X] | 6 | O[X] | ||||
P[X] | 5 | P[X] | ===N | C=== | ==== | P[X] | 5 | P[X] | |||||
[X] | 4 | [X] | [X] | 4 | [X] | ||||||||
1[X] | 3 | 2[X] | ===N | C=== | ==== | 1[X] | 3 | 2[X] | |||||
[X] | 2 | [X] | ____ | ____ | ____ | ____ | [X] | 2 | [X] | ||||
[X] | 1 | [X] |
|
| LP2 |
| LP2 |
|
|
| [X] | 1 | [X] |
[X] | 0 | [X] |
|
|
|
|
|
|
|
| [X] | 0 | [X] |
|
| “P” - prev scrn, | n”H” - | element | |||||||||
|
| “M” - main menu, | “Z” - | clr current reg, | nn”S” - slot: |
| |||||||
Figure 10A. HDSL Status Summary -HRE Screen
|
| 11 |
